<?php
/***
	jString-1.0.php
	name:xiaojia
	email:iatt@qq.com
	qq:273142650
	time:2012.1.11 14:51
***/

	class Jstring
	{
		
		function getFirstChar ($s0)
		{
			
			$firstchar_ord=ord(strtoupper($s0{0})); 
			
			if (($firstchar_ord >= 65 && $firstchar_ord <= 91) || ($firstchar_ord >= 48 && $firstchar_ord <= 57)) {
		
				return $s0{0};
		
			}
			
			$s = iconv('UTF-8', 'gb2312', $s0);
			
			$asc = ord($s{0}) * 256 + ord($s{1}) - 65536; 
			
			if($asc >= -20319 && $asc <= -20284) return "A"; 
			if($asc >= -20283 && $asc <= -19776) return "B"; 
			if($asc >= -19775 && $asc <= -19219) return "C"; 
			if($asc >= -19218 && $asc <= -18711) return "D"; 
			if($asc >= -18710 && $asc <= -18527) return "E"; 
			if($asc >= -18526 && $asc <= -18240) return "F"; 
			if($asc >= -18239 && $asc <= -17923) return "G"; 
			if($asc >= -17922 && $asc <= -17418) return "H"; 
			if($asc >= -17417 && $asc <= -16475) return "J"; 
			if($asc >= -16474 && $asc <= -16213) return "K"; 
			if($asc >= -16212 && $asc <= -15641) return "L"; 
			if($asc >= -15640 && $asc <= -15166) return "M"; 
			if($asc >= -15165 && $asc <= -14923) return "N"; 
			if($asc >= -14922 && $asc <= -14915) return "O"; 
			if($asc >= -14914 && $asc <= -14631) return "P"; 
			if($asc >= -14630 && $asc <= -14150) return "Q"; 
			if($asc >= -14149 && $asc <= -14091) return "R"; 
			if($asc >= -14090 && $asc <= -13319) return "S"; 
			if($asc >= -13318 && $asc <= -12839) return "T"; 
			if($asc >= -12838 && $asc <= -12557) return "W"; 
			if($asc >= -12556 && $asc <= -11848) return "X"; 
			if($asc >= -11847 && $asc <= -11056) return "Y"; 
			if($asc >= -11055 && $asc <= -10247) return "Z"; 
			
			return '~'; 
			
		}
		
	}

?>